Which preposition to use with undefined

in Occurrences 3%

They were dim in colour, they were undefined in shape, they were a little meaninglessno, not meaningless, for they confirmed the psychological revelations of the receding temples.

as Occurrences 2%

The truth probably is, that Steele wished to leave as undefined as possible what belonged to Addison and what belonged to himself; that he was greatly annoyed when he found that their respective shares were by Addison's own, or at least his alleged, request to be defined; that in his assignation of the papers he had not been quite honest; and that, knowing this, he suspected that Tickell knew it too.

to Occurrences 1%

For some reason, undefined to himself, the title was unpleasant to him.

before Occurrences 1%

' This is that pure worship and undefined before God and the Father, of which St. James tells us; and says that it consists in this'to visit the fatherless and widows in their affliction; and to keep ourselves unspotted from the world.'

of Occurrences 1%

In Asia Minor Turkey loses the territory of the Sanjak of Smyrna, over which, however, she retains a purely nominal sovereignty; the territory still undefined of the Armenian Republic: Syria, Cilicia, Palestine and Mesopotamia, which become independent under mandatory powers; in Arabia the territory of the Hedjaz, whilst the remainder of the peninsula will enjoy almost complete independence.

to Occurrences 1%

And then there arose within her a wishshadowy and undefined to herself, it is true; but still a wishthat she, Maggie Miller, might one day call that gentle Rose her sister.

Which preposition to use with  undefined